Umbrella Belt Systems

Umbrella arch system application has become widespread in tunnel opening in risky areas and poor ground conditions. In order to prevent the risk of damage to the buildings on the tunnel route, umbrella arch  system of appropriate diameter is preferred. The pipe diameter to be used affects both the economy and the duration of the project.

The 4 inch steel pipe is used in umbrella  arch application by integrating with special drilling machines. The pipe diameter to be used affects the cost and duration of the project. While a special drilling machine is required in the application of a 4-inch steel pipe umbrella belt, it is possible to place the pipes with smaller diameters in the tunnel phase by means of a drilling equipment connected to the excavators. Choosing the appropriate steel pipe diameter is important in meeting the loads and stresses in front of the tunnel.

PILOT BIT 2W

Two wings model of Pilot Bit which is choosed by soil condition.

DRILLING PIDE PILOT BIT THREAD TYPE
MODEL OUTER DIA THICKNESS INNER DIA
2UMB3,5 88.9mm 3-4mm 80mm ISO 10208 R32,T38,R38,T45,T51
2UMB4 101.6mm 4-6mm 80mm ISO 10208 R32,T38,R38,T45,T51
2UMB4,5 114,3mm 6-8mm 95mm ISO 10208 R32,T38,R38,T45,T51

*We are able to produce any size bits and ballistic, semi-ballistic or spherical button type diamonds on your demands.

PILOT BIT 3W

THREE WINGS

Three wings model of Pilot Bit which is choosed by soil condition.

DRILLING PIDE PILOT BIT THREAD TYPE
MODEL OUTER DIA THICKNESS OUTER DIA
UMB3,5 88.9mm 3-4mm 72mm ISO 10208 R32,T38,R38,T45,T51
UMB4 101.6mm 4-8mm 84mm ISO 10208 R32,T38,R38,T45,T51
UMB4,5 114,3mm 6-10mm 90mm ISO 10208 R32,T38,R38,T45,T51

*We are able to produce any size bits and ballistic, semi-ballistic or spherical button type diamonds on your demands.

UMBRELLA PIPE ADAPTER

PIN AND BOX

It is the connecting part used to extend the Umbrella Pipe which is insufficient for long-length drilling operations.

RING BIT

It is commonly used with pilot bit. It remains in the soil after the drilling process is completed.

RING BIT

TWO WINGS

It is a Ring Bit model which is designed for two wings Pilot Bit.

DRILLING PIDE RING BIT
INC MODEL OUTER DIA THICKNESS OUTER DIA INNER DIA
3,5 2UMB3,5 88.9mm 3-4mm 100mm 70mm
4 2UMB4 101.6mm 6-10mm 110mm 70mm
4,5 2UMB4,5 114,3mm 6-10mm 120mm 76mm

*We are able to produce any size bits and ballistic, semi-ballistic or spherical button type diamonds on your demands.

RING BIT

THREE WINGS

It is a Ring Bit model which is designed for three wings

DRILLING PIDE RING BIT
INC MODEL OUTER DIA THICKNESS OUTER DIA INNER DIA
3,5 UMB3,5 88.9mm 3-4mm 108mm 50mm
4 UMB4 101.6mm 4-8mm 120mm 60mm
4,5 UMB4,5 114,3mm 6-10mm 130mm 76mm

*We are able to produce any size bits and ballistic, semi-ballistic or spherical button type diamonds on your demands.

UMBRELLA PIPE

It is used by welding with ring bits. As the ring bit moves through the soil, the umbrella pipe settles in the soil. Then the strength is ensured by concreting the inside.